1,New model with square indicator. 2,3KA,4.5KA,6KA. 3,CE,KEMA,CB Certificated. ... designed to carry label.Handle central-staying function for circuit fault indicatingIn case of overload, to protect circuit,MCB handle trips ... unwanted operation of the product.Screw terminal lock deviceThe lock device prevents unwanted or casual dismounting of connected terminals.Technical Data ...